Powerware 5075 kVA - Manual (Page 77)

69 Powerware BPIII Harsh Environment UPS 50--75 kVA Installation and Operatio n
164201261 Rev. F 111503
12. System is now on line (Inverter input supported by battery) and will continue
until the battery is depleted or commercial input power returns.
The following messages appear on the screen:
Status: System Normal, On Battery
Alarm: On Battery more than 30 Seconds
Notice: Bypass AC Under Voltage
Bypass is Not Available
Input AC Under Voltage
13. Place Power Switch S1 (located in the environmental cabinet) to the OFF
position.
14. To return the UPS to NORMAL MODE of operation when commercial power
returns, close the feeder breaker.
The UPS can be transferred to bypass and shut down normally.
To Shut Down the UPS from Cold Start:
1. Place Power Switch S1 (located in the environmental cabinet) to the ON
position.
2. Place the BATTERY switch in the OFF position.
3. Place the MODE switch in the BYPASS position.
4. Place Power Switch S1 (located in the environmental cabinet) to the OFF
position.
5. Open battery breaker CB2.
6. Open input breaker CB1.
To Reset the DC to DC Converter:
1. Turn BATTERY switch to OFF.
2. Wait at least four seconds. Turn BATTERY switch to NORMAL. The converter
restarts.